Access-level settings are applied to migrated groups differently, depending on whether a group was created before or after the Groups for Business service was initially released in December 2009:

The group was created AFTER Groups for Business was released

The migrated group receives the equivalent access level in the Groups for Business service. Learn more about access levels for Groups for Business.

The group was created BEFORE Groups for Business was released

The migrated group receives these default settings:

Who can join the group: No one—only owners and managers can add members.

Who can send messages to the group: No change. For example, if the group was set to allow only owners to send email to the group, the same setting applies to the group after migration to Groups for Business.

Who can view the members list: Only owners and managers. This setting determines who can expand the group's members list in calendar invitations and view it in your Groups directory.

Tip: To allow all users in your domain to view a group's members list and expand it in calendar invitations, edit the group's settings. Change the View members permission to All members of the group. Learn more about displaying a members list in calendar invitations.

Who can view the discussion archive: Archiving is disabled.

Note: In the list of groups in your Admin console, the Type column shows Custom for this type of migrated group, to indicate that it has custom access settings. You can edit a migrated group to change any of these access settings. Learn more